204789034 has 8 divisors (see below), whose sum is σ = 307260000. Its totient is φ = 102369036.

The previous prime is 204789031. The next prime is 204789047. The reversal of 204789034 is 430987402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 204788984 and 204789002.

It is not an unprimeable number, because it can be changed into a prime (204789031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244 + ... + 20239.

It is an arithmetic number, because the mean of its divisors is an integer number (38407500).

Almost surely, 2^204789034 is an apocalyptic number.

204789034 is a deficient number, since it is larger than the sum of its proper divisors (102470966).

204789034 is a wasteful number, since it uses less digits than its factorization.

204789034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25484.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 204789034 is about 14310.4519145972. The cubic root of 204789034 is about 589.4345189985.

The spelling of 204789034 in words is "two hundred four million, seven hundred eighty-nine thousand, thirty-four".